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SubjectRe: sk_buff allocation
> I'm writing a module that is able to modify outgoing packets.
> This is done by registering a new entry in ptype_all.
> But my problem is that in dev_queue_xmit_nit the sk_buff is
> cloned and that my function get this clone. So my modification
> on skb->data isn't take into account by the ethernet driver.

Why don't you use netfilter hooks? Write your hook for NF_IP_POST_ROUTING; it
will receive sk_buff **pskb, so you can completely replace old skbuff with new.

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